Oil-can



(N0 Model.)

- w. 0. F. S'GHOELLKOPIP.

OIL CAN 'Patnted July 7, 1885-.

Fly 3 "WITNESSES PMMM TNE wows PETERS co, FHOYO-UTHQ, WASHING UNITED STATES PATENT OFFICE.

OIL-CAN- JPECIPICATION forming part 01' Letters Patent N0. 321,537, dated July '7, 1885.

v Application died May 4, 1885. (No model.) i

That the alleged improvement may be fully understood, reference will be had to the accompanying drawings, making a part of the specification.

In the said drawings, Figure 1 represents a.

side-view of a-portionof'an oil-can having applied thereto the improvement for closingthe oil-inlet. Fig. 2 is a transverse section through the line w'w in Fig. 4. Figs. 3 and5 are detached sectionalviews of the can. Fig. 4 is a top view thereof. Like letters denote like parts in the drawings.

Oil-cans of large size, termed packages, for the transportation of oil, have in their upper end a large inlet or mouth that the package may be filled rapidly. When filled, the mouth is closed by ascrew-cap. This cap consists of a plate of metal of larger size than the mouth or inlet of .the package, and in which there is an opening of about the same diameter as that of the inlet. Said opening is provided with a screw-flange, to which is fitted a screw-cap, which, when screwed onto the flange, closes the opening in the plate. Said plate and cap are then placed on over the mouth of the package and the plate soldered down upon the package, thereby closing the inlet or mouth.

The above-described device for closing the mouth-of the package is not only expensive to make, but it is a matter of no little trouble to solder the plate to the can or package in consequence of the oil spilled aboutthe inlet while pouring the oil therein, and which must be cleaned oil that the solder may stick to the package. For that purpose the oil is usually removed by an acid, requiring some time to apply it, and therefore adding to the expense of the package.

To avoid the above expensive device for stopping the inlet of the package and to facilitate and expedite the closing of the inlet, is the purpose of my invention, which is as follows:

As shown'in the drawings, A represents the top-0f an oil can or package in which is acircular opening forming the inlet or mouth of the package, as seen in Fig. 5 at B, which shows a transverse sectional view of said opening. By a suitable mechanism the edge of. the inlet is made to consist of a single thread of a coarse screw, and for that purpose the edge above mentioned is struck up above the surface of the top A of the package, as seen at a, Fig. 5, thereby forming a rib or elevation around the inlet. From the crown of the rib the edge is bent downward below the plane of the inner surface of the top A, as shown at c in Fig. 5, in which it will be noticed that the said edge is slanting from one side to the other, thereby indicating the spiral incline of the thread of a screw above alluded to. The said rib a, together with the part turned down below the top, forms the screw-thread around the innerside of theinlet or mouth of the package.

To the screw-thread thus formed on the edge of the inlet is fitted to screw therein a shell, E, provided with an oil-tight-fitting cap, F, and having in the bottom thereof a hole, G, Fig. 3, covered by a valve, H, secured to the broad flaring end of the screw-stem I by means of the rode, the upper end of which is fixed in the solid head of the screw-stem, whereas to its lower end is secured the valve H, as shown in Fig. 2.

It will be observed that the space between the top of the cap F (into which the valve-stem I is screwed) and the bottom of the shell E forms a chamber around the valve and its stem, and of which the spout K is the outlet of the can when the large inlet or mouth is closed by the shell screwed therein,as above mentioned, and shown in Fig. '2.

It will be seen in the drawings that between theflange b of the shell and the rib a,above referred to, is interposedaring of packing, 0, so that on screwing the shell into the inlet or mouth of the package it.will be compressed between the flange b and the rib, thereby making the shell oil-tight in its connection with the package.

Oil is drawn from the package on opening the valve H by screwing upwardthe stem I. Then on tipping the package oil will flow therefrom through the valve opening into the chamber, thence out of the spout K, the flow of which is stopped by screwing downthc valve to its seat, as seen in Fig. 2.

From the above it will be obvious that forming on the edge of the inlet of the package a strong single screw-thread saves the labor, time, and expense required to furnish the inlet of the package with a stopple device made n the ordinary way, with the furtheradvam tage of being applied with greater facility, as

it is screwed at once into the package when filled.

What I claim as my invention, and wish to secure by Letters Patent, is

1. In an oil can or package, the mouth or inlet thereof having formed on its edge a screwthread, said thread being an integral part of the metal of the can, in combination with the shell E, screwed into the mouth or inlet 0 the can, so that the annular flange b shall be drawn tightly down upon the rib or raised portion of the screw-thread 01' the inlet and packing,substantially as described,and for the purpose specified.

2. In combination with the can, the shell E arid cap F, forming conjointly a chambered stopple for the said can or package, valve and screw-stem I, and spout K, substantially as described, and for the purpose set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

. WM. 0. F. SGHOELLKOPF. l Witnesses:

J. Ill. BUnmnGn,

ln'rnn Scum-2mm. 

